For decades, the story of Monopoly’s invention was a warm, inspiring, Horatio Alger narrative. A version of it, tucked into countless game boxes, told the tale of an unemployed man, Charles Darrow, who went to his Great Depression-era basement desperate for money to support his family. Tinkering around, he created a board game to remind them of better times, and finding modest success selling it near his home in Philadelphia, Darrow eventually sold it to the American toy and game …